Communication:Wireless
Connectors:None
Wireless Type:Bluetooth
Vocalism Principle:Dynamic
Brand Name:SIFREE
Style:Neckband
Control Button:Yes
Volume Control:Yes
Active Noise-Cancellation:No
Function:Common Headphone
Plug Type:Wireless
Sensitivity:123dB
Frequency Response Range:20-20000Hz
Line Length:0.6m
Resistance:32Ω
Waterproof:No
Model Number:S8 Wireless Bluetooth Earphone
Support Apt-x:No
Support Memory Card:No
Support APP:No
Is wireless:Yes
With Microphone:Yes
Bluetooth version:V4.1
Bluetooth distance:10 meters
Frequency range:2.4GHz-2.48GHz
Operating distance:Up to 10m (free space)
Bluetooth profiles:A2DP, AVRCP, HSP, HFP
Standby time:Up to 50hrs

Specification:

1. Bluetooth version: V4.1

2. Bluetooth distance: 10 meters

3. Frequency range: 2.4GHz-2.48GHz

4. Operating distance: Up to 10m (free space)

5. Bluetooth profiles: A2DP, AVRCP, HSP, HFP

6. Standby time: Up to 50hrs

7. Working Voltage: DC5V/130MA

8. Charging: cable included (no adaptor)

9. Battery: Built in lithium polymer battery

10.Talk/music playtime: Approximately 2-4 hours

11. Charging time: Approximately 1-2 hours